correction to branch scan

.gitlab-ci.yml

@@ -41,7 +41,7 @@ branch_scan:
   script:
     - mkdir scan_result
     - cd tar_images
-    - trivy image --timeout 15m --offline-scan --input $tar_image -f json -o ../scan_result/$CI_COMMIT_BRANCH.json --severity CRITICAL; fi
+    - trivy image --timeout 15m --offline-scan --input $CI_COMMIT_BRANCH -f json -o ../scan_result/$CI_COMMIT_BRANCH.json --severity CRITICAL
   artifacts:
     paths:
       - scan_result